From: Johan Hovold <johan+linaro@kernel.org>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Bjorn Andersson <andersson@kernel.org>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Jonathan Marek <jonathan@marek.ca>,
linux-arm-msm@vger.kernel.org, linux-rtc@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH 2/7] dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flag
Date: Mon, 20 Jan 2025 15:41:47 +0100 [thread overview]
Message-ID: <20250120144152.11949-3-johan+linaro@kernel.org> (raw)
In-Reply-To: <20250120144152.11949-1-johan+linaro@kernel.org>
From: Jonathan Marek <jonathan@marek.ca>
Qualcomm x1e80100 firmware sets the ownership of the RTC alarm to ADSP.
Thus writing to RTC alarm registers and receiving alarm interrupts is not
possible.
Add a qcom,no-alarm flag to support RTC on this platform.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20241015004945.3676-3-jonathan@marek.ca
[ johan: move vendor property; use boolean; reword description ]
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml b/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
index cdc56dfbfac3..7497dc3ac5b2 100644
--- a/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
@@ -50,6 +50,11 @@ properties:
items:
- const: offset
+ qcom,no-alarm:
+ type: boolean
+ description:
+ RTC alarm is not owned by the OS
+
qcom,uefi-rtc-info:
type: boolean
description:
--
2.45.2
next prev parent reply other threads:[~2025-01-20 14:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-20 14:41 [PATCH 0/7] arm64: dts: qcom: x1e80100: enable rtc Johan Hovold
2025-01-20 14:41 ` [PATCH 1/7] dt-bindings: rtc: qcom-pm8xxx: add uefi-variable offset Johan Hovold
2025-01-20 14:41 ` Johan Hovold [this message]
2025-01-27 18:00 ` [PATCH 2/7] dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flag Rob Herring (Arm)
2025-01-20 14:41 ` [PATCH 3/7] rtc: pm8xxx: add support for uefi offset Johan Hovold
2025-01-20 15:10 ` Sudeep Holla
2025-01-20 15:15 ` Johan Hovold
2025-01-20 15:17 ` Johan Hovold
2025-01-20 17:13 ` Sudeep Holla
2025-01-24 12:56 ` Tobias Heider
2025-01-24 14:07 ` Johan Hovold
2025-01-20 14:41 ` [PATCH 4/7] rtc: pm8xxx: mitigate flash wear Johan Hovold
2025-01-23 11:39 ` Johan Hovold
2025-01-20 14:41 ` [PATCH 5/7] rtc: pm8xxx: implement qcom,no-alarm flag for non-HLOS owned alarm Johan Hovold
2025-01-20 14:41 ` [PATCH 6/7] arm64: dts: qcom: sc8280xp-x13s: switch to uefi rtc offset Johan Hovold
2025-01-20 18:08 ` Jens Glathe
2025-01-23 12:26 ` Konrad Dybcio
2025-01-20 14:41 ` [PATCH 7/7] arm64: dts: qcom: x1e80100: enable rtc Johan Hovold
2025-01-20 18:12 ` Jens Glathe
2025-01-21 10:06 ` Johan Hovold
2025-01-23 12:26 ` Konrad Dybcio
2025-01-20 21:19 ` [PATCH 0/7] " Steev Klimaszewski
2025-01-21 10:06 ` Johan Hovold
2025-01-21 3:48 ` Joel Stanley
2025-01-21 10:07 ` Johan Hovold
2025-01-23 12:28 ` Konrad Dybcio
2025-01-25 18:46 ` Sebastian Reichel
2025-01-27 0:20 ` Rob Herring
2025-02-19 13:37 ` Johan Hovold
2025-04-21 14:36 ` Rob Clark
2025-04-22 13:39 ` Johan Hovold
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